An electron in a cathode ray tube is accelerated through a ...

[panfilo]

An electron in a cathode ray tube is accelerated through a potential difference of 10 kV. What kinetic energy does the electron gain in the process? (e = 1.6  10-19 C)
 a. 8.0  10-16 J
  c. 8.0  1022 J
  b. 1.6  10-15 J
  d. 1.6  10-16 J

Question 2

During a snowball fight, two balls with masses of 0.4 and 0.6 kg, respectively, are thrown in such a manner that they meet head-on and combine to form a single mass. The magnitude of initial velocity for each is 20 m/s. What is the speed of the 1.0-kg mass immediately after collision?
 a. zero
  c. 4 m/s
  b. 3 m/s
  d. 5 m/s

[dantucker]

Answer to Question 1

B

Answer to Question 2

C

[panfilo]

Thanks for the timely response, appreciate it

[blakcmamba]

Excellent